Addition and Subtraction Strategies

Front

What number is missing in the equation below: 65 + (13 + 25) = 13 + (____ + 25)

Back

65

Front

Use place value to find the sum of 24 + 32 + 16.

Back

72

Front

How would you break apart 173 to use the adding on strategy to find 235 + 173?

Back

235 + (100 + 70 + 3)

Front

How can you use the inverse operation and think addition to help you solve 378 - 164 = ______? Options: 378 + _____ = 164, 164 + _____ = 378, 378 + 164 = ____, 164 + 378 = ____

Back

164 + _____ = 378

Front

An odd number plus an odd number will _________________.

Back

have a sum that is always even.

Front

An even number plus an even number will ________________.

Back

have a sum that is always even.

Front

An even number plus an odd number will _______________.

Back

have a sum that is always odd.

Front

Use place value to find the sum of 42 + 13 + 36.

Back

91